Daikin REYQ8-48PY1B, Service Manual

Page: 195 / 477

SiBE37-701_B Test Operation
Test Operation 184
LED state
Throughout the manual the state of the LEDs is indicated as follows:
h
: OFF
k
: ON
l
: Blinking
Setting the push button switch (BS1~5)
Function of the push button switch which is located on the outdoor unit PCB (A1P):
The figure shows state of the LED indications when the unit is shipped from the factory.
Check operation procedure
1. Turn the power on for the outdoor unit and the indoor unit.
Be sure to turn the power on at least 6 hours before operation in order to have power
running to the crankcase heater.
2. Make sure that transmission is normal by checking the LED display on the outdoor unit
circuit board (A1P). (If transmission is normal, each LED will be displayed as shown below.)
(a) The state of the H8P (multi) LED in a multi-system shows which unit is the master unit (
k
), slave 1 unit (
l
) or slave 2 unit (
h
).
Only the master unit is connected to the indoor units with interunit wiring.
For changing the set mode
For field setting
For field setting
For test operation
For resetting the address when the wiring is changed or when an additional
indoor unit is installed
MODE
H1P
TEST:
HWL:
C/H SELECT
IND MASTER SLAVE
H3P H4P H5P H2P H6P H7P H8P
L.N.O.P DEMAND
MULTI
MODE
BS1
SET
BS2
RETURN
BS3
TEST
BS4
RESET
BS5
BS1 MODE
BS2 SET
BS3 RETURN
BS4 TEST
BS5 RESET
LED display
(Default status
before delivery)
Micro-
computer
operation
monitor Mode
Ready/
Error
Cooling/Heating
changeover
Low
noise Demand Multi Individual
Bulk
(master)
Bulk
(slave)
HAP H1P H2P H3P H4P H5P H6P H7P H8P
Single outdoor
unit system
l h h k h h h h h
Multiple
outdoor
unit
system
Master
unit
(a)
l h h k h h h h k
Slave
unit
1
(a)
l
h h h h h h h
l
Slave
unit
2
(a)
l
h h h h h h h h